Java版MCP Server连接Claude Desktop时出现‘Server disconnected’错误求助

大家好，我跟着教程尝试用Java搭建一个MCP Server，但连接Claude Desktop的时候一直弹出“Server disconnected”错误，实在搞不定了，来求助大家！

环境信息 #

• 操作系统：macOS
• Java：通过SDKMAN管理，路径：/Users/myname/.sdkman/candidates/java/current/bin/java
• Claude Desktop：最新版本
• Spring Boot：使用spring-ai-starter-mcp-server-webmvc依赖

配置详情 #

Claude Desktop MCP配置（claude_desktop_config.json） #

{
  "mcpServers": {
    "fran-mcp": {
      "command": "/Users/myname/.sdkman/candidates/java/current/bin/java",
      "args": [
        "-jar",
        "/Users/myname/IdeaProjects/mcp-server/target/mcp-server-0.0.1-SNAPSHOT.jar"
      ]
    }
  }
}

应用配置（application.properties） #

spring.application.name=mcp-server
server.port=8081
spring.ai.mcp.server.name=fran-mcp
spring.main.web-application-type=none
spring.ai.mcp.server.version=0.0.1
# Disable banner and console logging for STDIO transport
spring.main.banner-mode=off
logging.pattern.console=

Maven依赖 #

<dependency>
  <groupId>org.springframework.ai</groupId>
  <artifactId>spring-ai-starter-mcp-server-webmvc</artifactId>
</dependency>
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-devtools</artifactId>
  <scope>runtime</scope>
  <optional>true</optional>
</dependency>
<dependency>
  <groupId>org.projectlombok</groupId>
  <artifactId>lombok</artifactId>
  <optional>true</optional>
</dependency>

错误详情 #

服务器看起来启动成功了，但初始化消息之后就立刻断开连接了，日志如下：

2025-08-23T20:57:11.518Z [fran-mcp] [info] Server started and connected successfully
2025-08-23T20:57:11.522Z [fran-mcp] [info] Message from client: {"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0}
2025-08-23T20:57:19.192Z [fran-mcp] [info] Server transport closed
2025-08-23T20:57:19.194Z [fran-mcp] [info] Server transport closed unexpectedly, this is likely due to the process exiting early
2025-08-23T20:57:19.194Z [fran-mcp] [error] Server disconnected

有没有朋友遇到过类似的问题？或者能帮我看看配置哪里可能有问题吗？

内容来源于stack exchange